baber/WOPTO huggingface dataset:
Patent GB-1167004-A (GB)
Title: Manufacture of polymers.
Inventor: LEFFERTS EDWIN BENTLEY
IPC: C08G63/80
Filed: 1967-09-07
Abstract: 1,167,004. Preparation of polymers; solid phase polymerization of polyesters. EASTMAN KODAK CO. 7 Sept., 1967 [9 Sept., 1966], No. 40962/67. Headings C3B, C3C, C3P and C3R. A polymer is prepared by conducting a polymerization reaction in a liquid melt phase, uniformly dispersing throughout the molten polymer an inert gas or vapour, and maintaining the dispersion through the polymer while cooling it to form a friable solid polymer, comminuting the friable solid polymer and continuing the polymerization in the solid phase. The inert gas is any gas which is not ordinarily reactive with the polymer under conventional polymer melt process conditions. This includes non-reactive materials that are gaseous under ambient conditions (1 atmosphere and 25‹ C.), e.g. nitrogen, carbon dioxide, helium, argon, some hydrocarbons, and some halogenated hydrocarbons (having boiling points below the solidification temperature or melting point of the polymeric melts) as well as the non-reactive vapour of materials (such as certain of the halogenated hydrocarbons and hydrocarbons) that are not necessarily gaseous under ambient conditions but which become gaseous at elevated temperatures and/or reduced pressures. Mixtures of gases may be used. In the examples polyethylene terephthalate is made using dimethyl terephthalate, ethylene glycol, zinc acetate dihydrate and antimony trioxide.
Patent GB-882804-A (GB)
Title: Automatic control circuit for inverter incorporating hot cathode grid controlled discharge tubes
IPC: H02M7/51
Filed: 1958-12-19
Abstract: 882,804. Inverters. NIPPON ELECTRIC CO. Ltd. Dec. 19, 1958 [Dec. 26, 1957], No. 41156/58. Class 38 (2). An inverter comprises two hot-cathode gridcontrolled valves 3, 4 in a push-pull arrangement, having their grids supplied through transformer 2 from input terminals 1. Output to terminals 14 is through transformer 7. In the preparatory state a slow-acting relay 9 holds contact 9a closed so that when input voltage is applied at 1 relay 8 operates to close contact 8a and apply the voltage at terminal 15 to the anodes, so that the inverter commences operation. The production of output voltage causes relay 11 to operate, closing contact 11a before contact 9a of slow-acting relay 9 opens due to the opening of contact 8b. If both tubes 3 and 4 fire simultaneously, the output current falls to zero, contact 11a opens and relay 8 is de-energized, causing the removal of the anode voltage. The closing of contact 8b causes relay 9 to operate and close contact 9a, placing the inverter in its preparatory state again.
Patent GB-1202542-A (GB)
Title: Improvements in or relating to a device for measuring differential pressures of liquid or gaseous fluids
Inventor: GASSIES EDMOND AUGUSTE
IPC: G01L7/16
Filed: 1967-09-08
Abstract: 1,202,542. Measuring fluid-pressure electrically. COMPAGNIE DES COMPTEURS. Sept.8 1967 [Sept.13 1966], No.41163/67. Heading G1N. Apparatus for measuring the difference in pressure between fluids in adjacent chambers comprises a piston in the separating wall whose displacement due to the pressure difference is restored by a servo-mechanism. As shown Fig.1, the difference between pressure P 1  in chamber 1 and pressure P 2  in chamber 2 tends to displace a piston 5 located in a hole 4 in the dividing wall 3. The piston is attached by rod 6 to a servosystem 8 which senses the displacement and restores the piston to its normal position by rotation about a pivot 7, the energizing current of the servomotor being indicative of the pressure difference. A hole 9 is formed in piston 5 to allow fluid to leak through, producing a reaction force which compensates for the drag on the piston due to friction, viscosity &c. In a modification of the compensating system Fig.4, the piston 5 is linked to a blade 10 passing through a gap 11a in the dividing wall 3 whereby the fluid flows past piston 5 in gap 4 and blade 10 in its gap 11a produce equal and opposite torques on the movable system.
Patent GB-1027634-A (GB)
Title: Fuel cells
IPC: H01M4/86
Filed: 1962-10-31
Abstract: 1,027,634. Fuel cells. LEESONA CORPORATION. Oct. 31, 1962 [Nov. 8, 1961], No. 41180/62. Heading H1B. A fuel cell is characterized by having at least one of the electrodes made from a host metal or alloy having elemental lithium incorporated into its surface.
Patent GB-1047979-A (GB)
Title: Flame-retardant phosphorous compounds
Inventor: WICKINGS JOHN ARTHUR
IPC: C07F9/12
Filed: 1964-10-10
Abstract: Novel oxyalkylated adducts are obtained by reacting alkylene oxides, e.g. ethylene, propylene and/or butylene oxide with the adducts obtained by reacting a phosphorus acid, e.g. orthophosphoric acid, with halogenated glycidyl ethers or esters, e.g. halogenated alkyl, cycloalkyl, aryl or aralkyl glycidyl ethers or esters. The reaction may be carried out in the presence of a solvent, e.g. dimethylformamide, under pressure in an atmosphere of the gaseous alkylene oxide and preferably at a temperature of 120 DEG -170 DEG C.  Under such conditions compounds consisting of 1 to 25 moles or more of the alkylene oxide per mole of the adduct may be produced. The compounds are useful as flame-retardant components for polyurethane foams (see Division C3).ALSO:A polymeric composition comprises a rigid or flexible polyurethane foam and a flame retarding additive comprising an oxyalkylated adduct of a halogenated glycidyl ether or ester, e.g. a halogenated alkyl, cycloalkyl, aryl or aralkyl glycidyl ether or ester, and a phosphorus acid, e.g. orthophosphoric acid.  The adduct may be obtained by reacting 1 mol of a glycidyl compound/phosphorus acid adduct with from 1 to 25 moles of an alkylene oxide.  The additives which are added to the composition before foaming are stated to be bonded to the polyurethane by a reaction involving hydroxyl groups thus providing " built-in " flame retardant components.  The composition may also contain other additives, e.g. antimonycontaining compounds.
Patent GB-1430760-A (GB)
Title: Multi-ply fibrous sheets
IPC: D04H1/58
Filed: 1972-09-09
Abstract: 1430760 Forming multi-ply webs; bonded boards KARL KROYER ST ANNE'S Ltd 15 Aug 1973 [9 Sept 1972] 41960/72 Headings D1R and D1N The components of a multi-ply web are each formed by passing a gas stream with suspended fibers through a permeable forming surface 11, incorporating a binder in each ply and consolidating the ply by moistening and passing through a heated nip 20, 21, 22, 24 then combining the plies to form a sheet or web. The binder may be sprayed in aqueous form 15 or added dry and then water sprayed. The binder may be 4% dry starch and the fibrous material 10% moistened content wood pulp. Suitable temperatures and pressures for the consolidation are given. As shown in Fig. 1 the individual plies are collected on a main surface 10 by passing through common nip roller pairs. A binder spray is provided at 25, 26 to consolidate the finished product. Alternatively polythene extruders can be provided to form a plastics interlayer. The surface for collecting together the plies can comprise a scrim sheet or board or a paper layer with which the web combines to form a composite product. The fibers employed in such products can be flock or metal. In alternative embodiments Figs. 2 and 3 (not shown) the plies are gathered together between pressing rollers, without employing a collecting surface. Materials other than binder can be sprayed onto the webs to confer e.g. fire resistant properties.
Patent GB-1063340-A (GB)
Title: Polyimide resins
IPC: C08G73/16
Filed: 1964-10-14
Abstract: The invention comprises heat-cured resins derived from equimolar amounts of (1) a polyanhydride of formula <FORM:1063340/C3/1> where R is a saturated aliphatic or unsubstituted aromatic hydrocarbon radical, an organosilicon radical or a divalent metal, A is O or NH, R1 is a benzene residue or a saturated aliphatic hydrocarbon radical, to 2 adjacent carbon atoms of which the anhydride group is attached and n is at least 2, and (2) a diprimaryamine. Polyanhydrides specified include the condensates of trimellitic anhydride with hydroquinone, bisphenol A, ethylene glycol, bis(4-hydroxyphenyl)sulphone, bis(4-hydroxyphenyl) and pentaerythritol.  Diamines specified include benzidine, bis(4-aminophenyl)ether, p-phenylene diamine, bis(3-methoxy-4-aminophenyl), m-phenylene diamine, bis(4-aminophenyl)sulphone, 1,6-diaminohexane, ethylene diamine, bis(4-aminophenyl)methane, diaminodurene, and 3,4-diamino benzoic acid.  The reactants may be condensed under an inert atmosphere and in a polar solvent.  Solvents specified include dimethyl formamide, N-methyl pyrrolidone and m-cresol.  The initial product is a polyamide-acid which on heating above 200 DEG  C. is converted to a polyimide. The product may be made into films, fibres, tapes and sheets, cast or moulded articles and may be used as a coating material, wire enamel, varnish or adhesive.  In Example 16 aniline is present during polymerization.
Patent GB-1055877-A (GB)
Title: Vehicle wheels
Inventor: ADAMS GEORGE EDWARD
IPC: B60B25/04
Filed: 1962-11-07
Abstract: 1,055,877. Vehicle wheels. DUNLOP RUBBER CO. Ltd. Oct. 30, 1963 [Nov. 7, 1962], No. 42016/62. Heading B7C. A vehicle wheel comprising a disc portion 11 and a rim 14, the disc portion 11 and a first part of the rim 14 being formed together as a unitary structure with a smooth outer profile in the region of junction of the two portions, is provided with a circumferentially extending gutter 20 in the region of junction, the-gutter being wholly recessed radially within the said outer profile and being bounded on its axially outer side by a circumferentially extending shoulder 21 buttressed by the radially outer peripheral part of the disc portion 11, a second rim part 22 being joined to the first rim part by welding 24. The gutter accommodates a split locking ring 25 which holds a bead-retaining flange 26 in position. The disc 11 comprises a central radially extending portion 12 and radially outwardly thereof a frusto-conical portion 13 joined to the rim, the portion 13 being apertured to reduce the weight of the wheel and increase ventilation.
Patent GB-1487303-A (GB)
Title: Aerial display devices
IPC: G09F21/10
Filed: 1974-11-04
Abstract: 1487303 Display apparatus R E HOBBS 4 Nov 1974 [6 Sept 1973] 42041/73 Heading G5C [Also in Division B7] An aerial display device consists of a light rigid structure constituting or bearing the display matter, and partly enclosing a chamber or bag 3 containing a gas less dense than air, the device being tethered to the ground by a cable. Preferably, the rigid structure is of sheets 1, 2 of expanded polystyrene, externally painted or bearing posters, or cut to the shape of certain articles. Alternatively the structure may be of glass reinforced plastics, light alloy or hardboard. The gas may be helium, hydrogen or hot air. The display may be illuminated by ground based spot lights or by lamps on the device supplied by wires running up the cable.
Patent GB-937509-A (GB)
Title: Apparatus for minimizing coding errors
IPC: H03M11/22
Filed: 1960-12-07
Abstract: 937,509. Electric selective signalling systems. POSTMASTER GENERAL OF CANADA. Dec. 7, 1960 [March 17, 1960], No. 42137/60. Drawings to Specification. Class 40 (1). The apparatus provides means associated with a keyboard for generating a binary code signal, and is such that particular forms of error made by the operator do not cause mal. functioning. The apparatus is described as applied to the coding of letters for subsequent sorting. Each letter is designated by a class 1 (e.g. major cities) or by a class 2 (e.g. other cities and towns). Class 1 letters are coded with a class 1 code group and ejected for subse. quent sorting, whereas class 2 letters are coded with a class 2 code group (e.g. the county) and then further code groups (e.g. the town and street). In the main embodiment, each coding comprises up to ten spots which are printed on the letter under the control of two keyboards, one for each hand and each having five keys. It is arranged that if the operator does not press a key that should be depressed, or if he presses a key in addition to the correct keys-these are called one-finger errors-no printing takes place, so that the letter is not misdirected. The keyboards feed two five-unit code signals to the printer, where they set up impression magnets, and also feed two signals, derived from a relay contact tree, to respective ones of the elements of a 32 x 32 matrix. Only a small number of the junctions of the matrix correspond to class 1 and class 2 codings and these junctions are so arranged that a onefinger error in a coding does not cause another coding to be selected. These junctions are called " acceptable " junctions, the junctions representing no coding being called " unacceptable." A selection unit is fed with the output of the matrix which appears on one or other of two wires, depending on whether a class 1 or class 2 letter is being coded. If the operator has made a one-finger error so that an unacceptable junction has been selected there is no signal on either wire and as a result no printing can, take place. The selection unit, when no error is preseht, actuates the printer so that the coding is printed on the letter and so that class 1 letters are ejected and class 2 letters are advanced by one space to receive the next coding. Should a class 1 coding follow a class 2 coding for a particular letter-which sequence of coding is inadmissible-the selection unit operates a warning lamp and does not actuate the printer. The operator thereby realizes that he has made an error. Instead of a two-keyboard input, there may be provided a single five-key keyboard which the operator actuates twice for each coding. Alternatively, a normal typewriter keyboard is used, coupled to means for translating the depression of a key to five-unit signals.
Patent GB-1448169-A (GB)
Title: Dental handpiece
IPC: A61C1/00
Filed: 1974-09-27
Abstract: 1448169 Air heaters KALTENBACH & VOIGT 27 Sept 1974 [3 Oct 1973] 42203/74 Heading F4S [Also in Division A5] In a dental hand-piece, a resistor 12 connected in series with a diode rectifier 14 heats water in a flow-path 10, and a resistor 22 connected in series with a diode rectifier 24 and situated in the air flow-path 20 heats the air, and switches 13, 25 in their respective electric circuits enable the resistors 12, 22, respectively, to be connected to the A.C. supply either through their respective diode rectifiers or directly. Control valves 11, 21 co-operate respectively with switches 13, 23, and depending upon whether the valve 11 is closed, partially open, or fully-open, the switch 13 is respectively open, connects the resistor 12 to the electric supply through the rectifier 14 or connects the electric supply to the resistor directly. A bimetallic strip 26 situated downstream of the resistor 22 senses the air temperature and when a pre-selected temperature is attained it actuates the switch 25 so that reduced electric power is supplied to the resistor 22 through the rectifier 24.  The hand-piece can be used to deliver either hot air, hot water, or a spray formed of hot air and hot water.
Patent GB-1200375-A (GB)
Title: Transistors and headers
Inventor: BRINKER CARL SIEGMUND DEN
IPC: H01L23/498
Filed: 1967-09-15
Abstract: 1,200,375. Semi-conductor devices. TEXAS INSTRUMENTS Ltd. 15 Sept., 1967, No. 42216/67. Heading H1K. The base lead 7 to a transistor wafer 10 has a greater transverse dimension than at least the emitter lead(s) 8, thereby reducing the base lead inductance. In the embodiment the wafer 10 is bonded by its collector region to a metallized area 2 on an insulating support, the collector lead 6, which is bonded to and cantilevered from this area 2, being of the same transverse dimension as the base lead 7. Further metallized areas 3, 4 respectively carry the base and emitter leads 7, 8, Au wires 11, 12 being provided to connect the areas 3, 4 to the relevant regions of the wafer 10. The areas 2-4 are of Ni overlaid with Au, while the leads 6-8 are of Au-plated Cu. If desired, only one emitter lead 8 may be provided, and the two opposed parts of the area 4 may be separated instead of being linked as shown. The device is encapsulated in silicone potting compound 13, apertures 14 in the leads 6, 7 improving the strength of the package. Alternatively, transversely spaced longitudinal slits defining intermediate regions which are displaced relative to the plane of the leads may be provided in the embedded parts of the leads 6, 7 as described in Specification 1,193,519.
Patent GB-1377475-A (GB)
Title: Expansible vessels
IPC: B65D88/52
Filed: 1971-10-03
Abstract: 1377475 Containers M R Y KASSRAVI 3 Oct 1971 42467/70 Heading B8P The container described is similar to that disclosed in Specification 1,298,488.
Patent GB-1204331-A (GB)
Title: A packing tray
IPC: B65D85/32
Filed: 1967-09-20
Abstract: 1,204,331. Egg &c. trays. CRISTALESCO S.A. 20 Sept., 1967 [7 Oct., 1966], No. 42834/67. Heading B8P. An egg &c. tray moulded from a plastics sheet has cups 5 for eggs and a symmetricallyarranged central hinge-line 14, 15, sets of grooves 7 at right-angles between each cup having a depth greater than half the depth of the cups so that when the tray in folded condition, as shown, is stacked in laterally offset alignment on another similar tray, Fig. 5 (not shown), the outer surfaces of the grooves 7 engage and pressure is not put on the outer faces of the cups 5. Studs 2, 10 at the corners and along the edges of the tray, respectively, and studs (11), Fig. 1 (not shown), between the cups, abut to leave a gap between the two parts of the tray for ventilation. Snap-studs 4 along the edges remote from the hinge 14, 15 hold the tray locked in closed position. The cups 5 have reinforcing ribs 6 down their sides, and their bottoms each have a generally pyramidal pattern 8 with a central hole (9), Fig. 1 (not shown), for ventilation. Reference has been directed by the Comptroller to Specification 925,595.
Patent GB-1024746-A (GB)
Title: An assembly including two elongated superposed members secured together by a connecting element
IPC: E06B3/30
Filed: 1962-11-14
Abstract: 1,024,746. Window frames; stud and socket fastenings. K. STEINER. Nov. 14, 1962 [June 22, 1962], No. 43114/62. Headings E1J and E2B. [Also in Division F2] An exterior metal cover 14 or 24 is secured resiliently to a wooden door or window frame 12 or 22 by threadless bolts 30 located in spaced bores 19 or 29 and each having a riveted headplate 31 engaged in a channel 15 or 25 in the metal cover 14 or 24 and a neck 32, Fig. 2 (not shown), engaged by a slotted leaf spring 34 in a recess 13 or 23 in the wooden frame 12 or 22. The outer end of the curved leaf spring 34 has a flange with a notch to receive an extracting tool but the recesses 13 may be concealed by a fillet 28 which with a flange 21 of the metal cover forms a cementing channel for a double glass 27. The fillet 28 is shown on a frame 22 in which the leaf spring 34 is shown perpendicular to that shown in the frame 12, being turned as it is inserted to accommodate a shallow recess 23. The head plate 31 of the bolt is eccentric of the shank 30 to accommodate to the position of the bore 29 when it leads to a shallow recess 23.
Patent GB-996329-A (GB)
Title: Improvements in or relating to tables
IPC: A47B87/00
Filed: 1962-11-14
Abstract: 996,329. Tables. C. C. SIMPSON. Feb. 12, 1964 [Nov. 14, 1962], No. 43120/62. Heading A4H. The top a of a table, supported by a frame b to which are secured legs c is of parallelogram plan form wherein each of a pair of opposite angles X is 60 degrees, allowing table assemblies of hexagon, V-shape and other plan forms to be built up.
Patent GB-1491275-A (GB)
Title: Film cartridge carrier
IPC: A45C11/00
Filed: 1975-10-22
Abstract: 1491275 Cases R W KLEIN 22 Oct 1975 [22 Jan 1975] 43417/75 Heading B8P A case for storing a column of film cartridges C has an opening 26 and finger notches 30, 32 to facilitate removal of a fresh cartridge, exposed cartridges being placed in the top of the case. The case may be of leather or plastics material and has a liner of sheet metal or of a plastics. A base flap 50 has a weakened line covered by the bottom portion 76 of a carrying strap. A flap 58 and catch 60, 62 securely close the opening 26. A similar flap closes the top of the case.
Patent GB-1117646-A (GB)
Title: 3-azabicyclo[3.2.2] nonane derivatives
Inventor: STANIN THEODORE EDWARD
IPC: C09B1/514
Filed: 1965-10-14
Abstract: Dyes are prepared from 3[p-aminophenyl-sulphonyl] - 3 - azabicyclo[3.2.2]nonane by: (a) reacting with 4,5-dinitro-1,8-dibydroxy-anthraquinone; (b) reacting with 3-nitro-4-chlorobenzenesulphonamide; and (c) diazotizing and coupling with 3-methyl-1-phenyl-pyrazolone - 5, beta - naphthol, N,N-di(beta-hydroxyethyl)-m-toluidine, N-beta-cyano-ethyl-N-beta-hydroxyethylaniline or N-glyceryl-2,7-dimethyl-1,2,3,4-tetrahydro-quinoline.ALSO:Novel compounds of formula <FORM:1117646/C2/1> where n is 1 or more, and R is an unsubstituted or substituted hydrocarbon or heterocyclic group joined to the S atom(s), and where the C atoms of the 3-azabicyclo nucleus may carry substituents, are prepared by reacting a 3-azabicyclo-[3,2,2] nonane with a sulphonyl chloride, and interconverting R groups as required.  The compounds have pharmaceutical and bacteriostatic uses.ALSO:Pharmaceutical compositions comprise 3 - azabicyclononane sulphones of formula <FORM:1117646/A5-A6/1> where n is 1 or more, and R is an unsubstituted or substituted hydrocarbon or heterocyclic group joined to the S atom (s), and wherein the C atoms of the azabicyclo nucleus may carry substituents, and non-toxic salts thereof.  They may be administered orally as elixirs or tablets and act as C.N.S. stimulants.  They may be combined with vitamins, aspirin, acetaminophen, salicylamide or phenacetin.  The above compounds are also used in solution as bacteriostatic agents.
Patent GB-1249938-A (GB)
Title: Improvements in or relating to an earth boring unit
Inventor: ALLARD PIERRE JEAN MARIE THEOD
IPC: E21B4/20
Filed: 1969-09-03
Abstract: 1,249,938. Boring earth and rock. P. J. M. T. ALLARD. 3 Sept., 1969 [13 Sept., 1968], No. 43689/69. Heading E1F.  A rotary down-the-hole drill comprises a cylindrical body 10 mounted on a non-rotatable rod 11 having a polygonal cross section. The rod is slidable in a corresponding polygonal aperture in a plate fixed to a cranetruck. A bit 22 is rotated by a hydraulic motor 26 fed by a pump 27 driven by an electric motor 28. Drilling mud is., supplied to the bit through a conduit 31 wound on. a drum and supplied froma pump which recirculates drilling mud from the last of a series of settling tanks. Current is supplied to the .electric motor via a cable: 29 which is also wound on the drum. A fluid actuated thrust device may act on the rod 11 to force the tool into the ground.